Sudden Ice Age Warming Linked to El Nino

Publication: National Geographic News   Date: March 17, 2004   View Article

During the last ice age, temperatures in the North Atlantic region rose sharply and quickly about every 1,500 years. The result: massive discharges of melted ice into the ocean which disrupted weather patterns around the world.

The trigger behind these abrupt climate cycles—called Dansgaard-Oeschger events—is the subject of a long-running debate that bears on the ability of scientists to predict climate.

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© 2008-2010 Collected Writings By John Roach